Economic Significance Of Rocks


Man has been interacting with the surface of the earth since long. With time and advancement in technology he is making different uses of rocks and minerals. Rocks and minerals are the main source of all metals, precious stones, solid fuel and raw materials for industries.

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The importance of rocks is given below –

(a) Soils : Soils are derived from rocks. Soils provide suitability for that agricultural products that provide food for mention and provide raw material for many industries.

(b) Building Material : Rocks are the source of types of building material directly or indirectly. Granite, gneiss, sandstone, marble and slates are extensively used in the construction of buildings. Tajmahal is made of white marble, Red Forts of Delhi and Agra, are made of red sandstone. Slates are used for roof purposes in different parts of India.

(c) Mineral Source : Minerals are the foundation of the modern civilization. Metallic minerals provide all metals ranging from very precious gold, platinum, silver, copper to aluminium and iron. These metals are obtained from different rocks.

(d) Raw Material : Certain rocks and minerals are used as raw material for many industries. In cement industry and limestone kilns different type of rocks and minerals are used for production of finished goods. Graphite is used in crucible and pencil manufacturing as raw materials.

(e) Precious Stones : Precious stones and metals are obtained from different metamorphic or igneous rocks. Diamond is a precious stone used in jewelry and is a metamorphic rock. Similarly other precious stones like gems, rubies and sapphires are obtained from different type of rocks.

(f) Fuel : Fuel in the form of coal, petroleum, natural gas and nuclear minerals are derived from different rocks.

(g) Fertilizer : Fertilizers are also derived from some rocks. Phosphatic fertilizers are obtained from phosphorite mineral found in abundance in some parts of the world.

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Bibliography : NIOS – Geography

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